Journal of Crop Breeding

In order to study the relationship between morphological and agronomic characteristics like grain yield in barley, and to obtain better knowledge of the effective attributes on barley, an experiment was conducted at the Agricultural Research Station of Ghachsaran in randomized complete block design with two replications on 18 barley lines. Results showed that some characteristics such as days to maturity, days to heading, number of seed per spike, spike length and early growth power of plant had high correlation with grain yield. Maximum variation in grain yield could be attributed to the days to maturity, agronomic score, early growth power of plant, number of seed per spike, spike length and days to heading respectively. The results of path analysis also revealed the importance of the direct effect of the days to maturity which was mainly due to indirect effect of peduncle length.